在android中下载视频时获得异常“意外结束流”

Question

我尝试从服务器下载视频，在我的android应用程序中，这是一个大约250 my到300 my的大视频。我的代码对于30 my到40 my的小视频很好，但是当我下载大视频时我得到了异常。例外情况如下：

(4617)：libcore.net.http.FixedLengthInputStream.read(FixedLengthInputStream.java:48) 10-28 10:11:57.227: W/System.err(4617)：java.io.IOException:流程10-28 10:11:57.232: W/System.err(4617)：at java.io.IOException 10-28 10:57.232: W/System.err(4617 ))：java.io.BufferedInputStream.read(BufferedInputStream.java:304) 10-28 10:11:57.237: W/System.err(4617)：java.io.InputStream.read(InputStream.java:163) 10-28 10:57.237: W/System.err(4617)：com.photography.khalid.PreviewVideo.DownloadFile(PreviewVideo.java:1079) 10-28 10:11:57.237: W/System.err(4617)：在com.photography.khalid.PreviewVideo$DownLoadVideoFile.doInBackground(PreviewVideo.java:1121) 10-28 10:11:57.242: W/System.err(4617)：在com.photography.khalid.PreviewVideo$DownLoadVideoFile.doInBackground(PreviewVideo.java:1) 10-28 10:57.242: W/System.err(4617)：at android.os.AsyncTask$2.call(AsyncTask.java:264) 10-28 10:11:57.242: W/System.err(4617)：at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 10-28 10:11:57.242: W/System.err(4617)：java.util.concurrent.FutureTask.run(FutureTask.java:137) 10-28 10:57.247: W/System.err(4617)：at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208) 10-28 10:11:57.247: W/System.err(4617)：at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 10-28 10:11:57.252: W/System.err(4617)：java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 10-28 10:57.252: W/System.err(4617)：at java.lang.Thread.run(Thread.java:856)

我试着用这个链接link在堆栈流上找到解决方案，但是在大尺寸视频上仍然会出现错误。

我的代码如下所示

public void DownloadFile(String fileURL, String fileName) {
    try {

        String RootDir = Environment.getExternalStorageDirectory()
                + File.separator + "Photography";
        /*String RootDir = context.getCacheDir()
                + File.separator + "Photography";*/
        File RootFile = new File(RootDir);
        RootFile.mkdir();
        // File root = Environment.getExternalStorageDirectory();
        URL u = new URL(fileURL);
        System.setProperty("http.keepAlive", "false");
        HttpURLConnection c = (HttpURLConnection) u.openConnection();
        //Open a connection to that URL.
        //URLConnection c = u.openConnection();
        c.setUseCaches(false); 
        c.setDoInput(true); 

        c.setRequestMethod("POST");
        c.setDoOutput(true);
        c.connect();
        int contentByte=c.getContentLength();
        FileOutputStream f = new FileOutputStream(new File(RootFile,
                "temp"+fileName));
        //f=openFileOutput("temp"+fileName, context.MODE_PRIVATE);
        InputStream in = c.getInputStream();

        BufferedInputStream inStream = new BufferedInputStream(in, 1024 * 10);

        byte[] buffer = new byte[10 * 1024];
        int len1 = 0;

        while ((len1 = inStream.read(buffer)) != -1) {                          
            f.write(buffer, 0, len1);  
            Log.d("file data", buffer.toString()+",value of progressBarStatus"+progressBarStatus);
            progressBarStatus+=(len1*100.0)/(contentByte)+0.0;
            progressBarHorizontal.setProgress((int)progressBarStatus);
            progressBar2.setProgress((int)progressBarStatus);

            if(isTaskCancelled)
            {
                failToDownload=1;
                break;
            }
        }  
        f.flush();
        f.close();
        inStream.close();
    } catch (Exception e) {
        Log.d("Error....", e.toString());
        e.printStackTrace();
        failToDownload=1;
    }
}

如果有什么建议的话，那就最好来了。谢谢

Answer 1

我发现很长的视频不能用手动代码下载，我们必须在这里使用下载管理器，我共享链接，这有助于我完成任务。

https://stackoverflow.com/a/3028660/358107